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10 Troubleshooting
LED
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Legend:
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11 Maintenance, repair, disposal
11.1 Maintenance
The unit is maintenance-free�
11.2 Cleaning the housing surface
► Disconnect the device�
► Clean the device from dirt using a soft, chemically untreated and dry cloth�
Micro-fibre cloths without chemical additives are recommended�
11.3 Repair
► The device must only be repaired by the manufacturer�
Observe the safety instructions�
11.4 Disposal
► Dispose of the device in accordance with the national environmental
regulations�
Error
Potentiometer "Function" in
invalid setting zone
Short circuit at sensor supply
Overspeed
Short circuit at transistor output
Internal device error
on
Troubleshooting
Correct potentiometer position
(→ 7.1)
Remove short circuit
Check whether the input
frequency is outside the
permissible frequency range
(→ 9)
Remove short circuit
Contact service
flashing
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